Forming-machine for dough.



G.' H. PETRI. FORMING MACHINE FOR DOUGH. APPLICATION PILED MAY "1, 190s.

\ l936,661 Patented Oct. 12,1909.

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nNrr-EnsTi-ifrns PATENT cierren,

- GNTHER H; PJEITQRI;fOFBOSTON,y MASSACHUSETTS.

FORMING-MACHINE FOR DOUGI-I.

@Specification of Letters Patent. 'Patvllfml `0011,12, 190).

`Application filed May 7,` 1908. Serial No. 431,370.

lowing is a specification.

'lhis invention relates to forming machinel for doughl and other plasticmaterials. More -partieularlv, it relates ,tof'nn'ichines for moldingdough'. forming a skin'4 thereon and a shape suitable `forfifolls,.loaves ofA rendering it. not .easilyA ac( bread, etc.

; 'llie object is `to improve and simplify apparatus of this .sort b'reciprocating.compiI lwhich lia-vw characterl idapparatus heretoforeknown and which ,have `had theelfect. of

increasing` the` cost` and complicationiof ap-` `paratus,-fconcealinglthe dough froniwobservation while undergoing' the process andssible for? treat.- `nient `with llouizete.and which 1arejiiot `easilyadjustable to, meet the needs ofdiffer- Aingsizesl ot loaves` or(consistency and quality i of dough. These.l objects fare aceoi'nplishedby ap1-iaratus,.ione.. einbmlimentofwliich is, ,shown herein i. andanother. en'ibodimelitv 'of Awhich is shown inrniy accompanying,appli-.cation for `patentitiled,herewith,,Serial No.,

131,369, in which the', niain.r principle consists of the provision ot'i t wo,.niolding boards, one

set edgewise .with-respect tothe other;` one benigni 1not1on withrespect to `the. other,

the `motion being' in a direction inclined to the .line;of,intersectionofi the two` `boar 'Oiieiot these. boardsI isipreferably ofample area` and set horimintally. the second is up- `right/close aboveit, vand ispreferalily divided intodetael'ied sections altcri'iatelyset` at opposite angles with respect to the direction` of movement otthe tiri-'t board. A mass lof :dough` being' placed oni the vhorizontalboard is bythe motionthereof brought into eontact withtheuprightboard. f`'Ihereisnoth- [ingvcoveringuthe dough from view orl from i access andno; parts which en'ibrace or compress the dough.` The nioldlngv effectis at- .v borird` on theiinass and the 4frictional re! tained-by thefrictional pull of the under straint of the-upright..barrier board,which (owing to the slight distance between the point ot''application`ofl the pull to the mass by the under ,boardand the point of applicationofV the resistance voered by the upright 'lin'iinating troughs,A andother features` .parts board) causes rotating motions to be engendered,which tend to. occur both about a vertical axis and a. horizontal axis.A resultant rotation follows, carrying the mass along' the intersectionof the boards, during which the conjoint effec-t of the pull of the oneboard, the resistance of the other, the plastic condition of the mass,the weight of the n'iass anu the slip of the surface of 'the mass uponeach of the boards produces i11- ternal and external etl'ects upon themass, forming a skin thereon and shaping it round. The effect will bevaried if the angle between the upright. board and the motion of theunderboard be changed, and the invention comprises simple means forchanging this angle. The upright board mayhave stationary surface, asclaimed herein, or moving as in my other application.

The invention also comprises means for if desired, without abandoningthe abovedescribed advantages of easy observation `and vertical access,by providingan adjust- `an embodiment of the invention: Fin'. 2 rep.

resents a ,similar embodiment in plan; Fin'. 3 is a plan showing,apparatus as it ma'y lie constructed to embody the invention; Fig. 4; isa side elevation ofthe saine.

The word board is used-herein in a broad sense meaning,` not merely woodbut any material formed and arranged in acqowlauee.herewith. ,ln thedrawings the ,2, 2. 12, 12 may be considered as wooden while the parts 1and 11 are repre- .applying sidewise compression to the doug-li,

sented as being of flexible materials suchv as l leather. canvas orfelt.

ln F 1 and 2 the part 1 represents one molding' board which is alior1zontal belt or carrier in motion around rollers l. 'ilflie'othermolding board consists of several blades 2, 2 set angiularly above it. Amass of dough put on at 3 will travel through the course shown by arrows3.

In Fig: 3 is shown a molding' board 11 sustained on a bed or platen 10,and upright stationary-surfaced barrier blades 12, 12 which together areherein referred to as constituting;- a single board divided intosections. The trend or run of the successive sections ying board 12er127.

l2 and l2 is inclined alternately on the opposite sides of the line elmotion ot board ilY represented by the arrow in Fig. 'lfhey are set sothat attcr a mass o t dough has encountered tlie tirst section l2 andbeen carried to the end thereof, it is then carried for` ward by theboard ll and immediately encounters on its other side the section 12,which lorees it in the opposite direction sidewise ami tinally deliversit to another section l2. The process is thus repeated, carrying thedough through a zigzag course and rolling it alternately upondifferentaxes of its mass as long as needed to complete its molding andforming. On the traine L3 of thel apparatus rollers` l-l aie journalcd,one of them having a driving pulley l5. The carrier belt ll passesaround these rollers. ',lhe side frame also supports pins or uprightbolt lo from which arms 1S project, being pivoted thereon andadjustableangularly thereabout, each capable oi being fastened in anydesired adjustment by thumb-screw 19. 'lhese arms Ahold the moldingboards l2 and l2', the faces oLt' which may be rough- Yened withcorrugationsland teeth as clearly 'represented in Figs. 3 anjdflifor thepurpose of offering greater lrictional resistance to the dough. At thedischarge end otf thel up` right molding boards an extension or ',viiig2() may be attached as by hinges 2i or otherwise and means may beprovided to hold this at any desired angle to the main part otl the'molding board.. 'i'he meaiisliere shown con- It will be obvious thatthese wings might be otherwise supported and still pert'orm theirfunction below der-cribed,but this is a con-- -venieut and simple mannerot arranging thein. These wings may be adjusted as shown at theright-hand in Fig. 2E, forming a gradually contracting throat with oneot the upright molding boards' or may ybe adjusted as shown at thelett-hand in` Fig. I5 where the wing is drawn back out oiaction. .lfadjustedto form a'throat. the turn-blicl le permits the wingto be held'tirmly in such position as to give any desired degree ot choking upon amass of dough` passing through such wing and theopposingmoldei-,ordiugto the. adjustineiit and the size ol" thc ni'ass,a vmass ot' dough passing through this choke will be compressed.somewhat laterally and will be. iormed into a somewhat'cylindricalshape rotating upon its vertical axis, the .side in contact with therougheued molding board being retarded more than they side in con tactwith the opposing` wing` which may be made smoother or by any othermeans less resistant for this purpose. 'et

According to the needs, consistency of .dough and size ot' massesthereof, few or many of thesections 1Q, l2 may bc used; and pparatus mayhe constructed with as 13." many more similar sections tiran the numbershown in the drawing as occasion shall require. ly adjusting the arms ISabout the pivots 16 the molding etl'ect ot each section may be Varied.

ln the claims line ot' intersectioi means the trend or run ol theupright \-b ard, or the line wherein its sui-tace would cut the lowermolding board if projected thl 'eo1i it being understood that theuprigli i board does not actually intersect, nor neclssarily rest incontactwith the under board. "s It is also to be understood that theword horizoiital when applied to the cari-ier in the claims does notmean absolutely level, but may cover a carrier which is somewhatinclined, provided it be under the dough so that the weight ol the douohthereon iroip s l duces a frictional effect.

v I claim t i l.y Apparatus of the class described, c'omprising twomolding boards, one being a carrier board and the other a barrier boardset over it and consisting of a series of separate blades havingstationary working :faces set with their respective lines ot'intersection with the carrier at successively ditferent an `gles tothemotion of the barrier, and means to set the blades individually atvarious angles to said motion of the carrier.

2, Apparatus of the class described coinprising a tiexible belt andcylindrical rolls supporting it with a horizontal molding suriace, aframe beside said surface, blades mounted thereon and projecting oversaid surface, forming sections of a cooperating molding board having auupright .tace and means to hold said blades in various positions on saidframe.

2l. Apparatus of the class described, coniprising a horizontally movingmolding board, a cooperating molding boai'd having an upright tace whoseintersection with the carrier board is at an angle with the carriersmotion and an auxiliary upright board toi-ming therewith a contractingthroat for passage ot material.

l. .'\pl )aratus of the class described, coniprising a horizontallymoving molding board, a cooperating molding board. having an uprightYt'ace whose intersection with the carrier board is at; an angle withthe cai'- riers motion and an auxiliary upright board forming therewitha coi'itracti'ng throat for passage .ot material, the, said uprightmolding board being formed ot a succession of blades arranged zigzag andthe auxiliary board opposing one, ol? them being an exten sion ot thepreceding boai'd.

Apparatus ot' the class described, coinprising a horizontally movingmolding board, a cooperating molding boaid having an uprightI t'acewhose intersection with the carrier hoard is at an angle with thecarriers motion and an auxiliary upright. board ltlO 3 riers motionf/bla'des board opposingone of them being an extenforming therewith acontracting throat for passage of material, the said upright moldingboard being formed of'a succession of arranged zigzag and the auxiliarysion of the preceding board and hinged thereto and 'there being anextensible strut between said preceding board and its extension, 1

6. Apparatus of the class described, comprising a horizontally movingmolding board, a coperating molding board havin an upright face cairierboard is at an angle with the carand an auxiliary upright board formingtherewith a contracting throat for passage ot' material, said auxiliaryboard havmgia more frlctxonless face than lts opposing boa rd with whichit forms the throat.

whose intersection with the@ 7. Apparatus of the class described,comprising two molding boards, one being a carrier for material and theother a barrierv therefor, and means to impart motion to one relative tothe other in a direction at an angle to the line of their intersection;the barrier being comprised ofl independent sections arrangedalternately at angles on opposite sides of the direction of motion andthere being means to change the setting of one section ,independentlyits adjacent sections.

In testimony whereof I hereto aliix my signature, in presence of twowitnesses.

GUNTHER n. PETRI,

of the setting of Witnesses JOSEPH T. BRENNAN; EVERETT E; KENT.

